eb7d16ea25
mflr is kind of expensive on Power version smaller than 10, so we should schedule the store for the mflr's def away from mflr. In epilogue, the expensive mtlr has no user for its def, so it doesn't matter that the load and the mtlr are back-to-back. Reviewed By: RolandF Differential Revision: https://reviews.llvm.org/D137423
298 lines
7.6 KiB
LLVM
298 lines
7.6 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=powerpc64le-unknown-linux -mcpu=pwr8 -O0 < %s | \
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; RUN: FileCheck %s -check-prefix=P8
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; RUN: llc -mtriple=powerpc64le-unknown-linux -mcpu=pwr9 -O0 < %s | \
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; RUN: FileCheck %s -check-prefix=P9
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define i32 @test_choice1(fp128 %a, fp128 %b) #0 {
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; P8-LABEL: test_choice1:
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; P8: # %bb.0: # %entry
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; P8-NEXT: mflr 0
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; P8-NEXT: stdu 1, -112(1)
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; P8-NEXT: std 0, 128(1)
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; P8-NEXT: bl __nekf2
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; P8-NEXT: nop
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; P8-NEXT: # kill: def $r3 killed $r3 killed $x3
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; P8-NEXT: cmplwi 3, 0
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; P8-NEXT: bne 0, .LBB0_2
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; P8-NEXT: b .LBB0_1
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; P8-NEXT: .LBB0_1: # %if.true
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; P8-NEXT: bl foo
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; P8-NEXT: nop
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; P8-NEXT: stw 3, 108(1) # 4-byte Folded Spill
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; P8-NEXT: b .LBB0_3
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; P8-NEXT: .LBB0_2: # %if.false
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; P8-NEXT: bl bar
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; P8-NEXT: nop
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; P8-NEXT: stw 3, 108(1) # 4-byte Folded Spill
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; P8-NEXT: .LBB0_3: # %final
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; P8-NEXT: lwz 3, 108(1) # 4-byte Folded Reload
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; P8-NEXT: clrldi 3, 3, 32
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; P8-NEXT: addi 1, 1, 112
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; P8-NEXT: ld 0, 16(1)
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; P8-NEXT: mtlr 0
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; P8-NEXT: blr
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;
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; P9-LABEL: test_choice1:
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; P9: # %bb.0: # %entry
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; P9-NEXT: mflr 0
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; P9-NEXT: stdu 1, -112(1)
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; P9-NEXT: std 0, 128(1)
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; P9-NEXT: xscmpuqp 0, 2, 3
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; P9-NEXT: bne 0, .LBB0_2
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; P9-NEXT: b .LBB0_1
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; P9-NEXT: .LBB0_1: # %if.true
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; P9-NEXT: bl foo
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; P9-NEXT: nop
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; P9-NEXT: stw 3, 108(1) # 4-byte Folded Spill
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; P9-NEXT: b .LBB0_3
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; P9-NEXT: .LBB0_2: # %if.false
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; P9-NEXT: bl bar
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; P9-NEXT: nop
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; P9-NEXT: stw 3, 108(1) # 4-byte Folded Spill
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; P9-NEXT: .LBB0_3: # %final
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; P9-NEXT: lwz 3, 108(1) # 4-byte Folded Reload
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; P9-NEXT: clrldi 3, 3, 32
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; P9-NEXT: addi 1, 1, 112
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; P9-NEXT: ld 0, 16(1)
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; P9-NEXT: mtlr 0
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; P9-NEXT: blr
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entry:
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%cmp = fcmp oeq fp128 %a, %b
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br i1 %cmp, label %if.true, label %if.false
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if.true:
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%res1 = call i32 @foo()
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br label %final
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if.false:
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%res2 = call i32 @bar()
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br label %final
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final:
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%result = phi i32 [%res1, %if.true], [%res2, %if.false]
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ret i32 %result
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}
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define i32 @test_choice2(fp128 %a, fp128 %b) #0 {
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; P8-LABEL: test_choice2:
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; P8: # %bb.0: # %entry
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; P8-NEXT: mflr 0
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; P8-NEXT: stdu 1, -112(1)
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; P8-NEXT: std 0, 128(1)
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; P8-NEXT: bl __lekf2
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; P8-NEXT: nop
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; P8-NEXT: # kill: def $r3 killed $r3 killed $x3
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; P8-NEXT: cmpwi 3, 1
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; P8-NEXT: blt 0, .LBB1_2
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; P8-NEXT: b .LBB1_1
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; P8-NEXT: .LBB1_1: # %if.true
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; P8-NEXT: bl foo
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; P8-NEXT: nop
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; P8-NEXT: stw 3, 108(1) # 4-byte Folded Spill
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; P8-NEXT: b .LBB1_3
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; P8-NEXT: .LBB1_2: # %if.false
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; P8-NEXT: bl bar
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; P8-NEXT: nop
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; P8-NEXT: stw 3, 108(1) # 4-byte Folded Spill
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; P8-NEXT: .LBB1_3: # %final
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; P8-NEXT: lwz 3, 108(1) # 4-byte Folded Reload
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; P8-NEXT: clrldi 3, 3, 32
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; P8-NEXT: addi 1, 1, 112
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; P8-NEXT: ld 0, 16(1)
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; P8-NEXT: mtlr 0
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; P8-NEXT: blr
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;
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; P9-LABEL: test_choice2:
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; P9: # %bb.0: # %entry
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; P9-NEXT: mflr 0
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; P9-NEXT: stdu 1, -112(1)
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; P9-NEXT: std 0, 128(1)
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; P9-NEXT: xscmpuqp 0, 2, 3
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; P9-NEXT: crmove 20, 3
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; P9-NEXT: crnot 21, 20
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; P9-NEXT: crmove 20, 1
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; P9-NEXT: crnot 20, 20
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; P9-NEXT: crand 20, 20, 21
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; P9-NEXT: crxor 21, 21, 21
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; P9-NEXT: crxor 20, 20, 21
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; P9-NEXT: bc 12, 20, .LBB1_2
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; P9-NEXT: b .LBB1_1
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; P9-NEXT: .LBB1_1: # %if.true
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; P9-NEXT: bl foo
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; P9-NEXT: nop
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; P9-NEXT: stw 3, 108(1) # 4-byte Folded Spill
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; P9-NEXT: b .LBB1_3
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; P9-NEXT: .LBB1_2: # %if.false
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; P9-NEXT: bl bar
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; P9-NEXT: nop
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; P9-NEXT: stw 3, 108(1) # 4-byte Folded Spill
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; P9-NEXT: .LBB1_3: # %final
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; P9-NEXT: lwz 3, 108(1) # 4-byte Folded Reload
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; P9-NEXT: clrldi 3, 3, 32
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; P9-NEXT: addi 1, 1, 112
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; P9-NEXT: ld 0, 16(1)
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; P9-NEXT: mtlr 0
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; P9-NEXT: blr
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entry:
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%cmp = fcmp ugt fp128 %a, %b
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br i1 %cmp, label %if.true, label %if.false
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if.true:
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%res1 = call i32 @foo()
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br label %final
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if.false:
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%res2 = call i32 @bar()
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br label %final
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final:
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%result = phi i32 [%res1, %if.true], [%res2, %if.false]
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ret i32 %result
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}
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define i32 @test_choice3(fp128 %a, fp128 %b) #0 {
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; P8-LABEL: test_choice3:
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; P8: # %bb.0: # %entry
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; P8-NEXT: mflr 0
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; P8-NEXT: stdu 1, -112(1)
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; P8-NEXT: std 0, 128(1)
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; P8-NEXT: bl __ltkf2
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; P8-NEXT: nop
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; P8-NEXT: # kill: def $r3 killed $r3 killed $x3
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; P8-NEXT: cmpwi 3, -1
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; P8-NEXT: bgt 0, .LBB2_2
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; P8-NEXT: b .LBB2_1
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; P8-NEXT: .LBB2_1: # %if.true
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; P8-NEXT: bl foo
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; P8-NEXT: nop
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; P8-NEXT: stw 3, 108(1) # 4-byte Folded Spill
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; P8-NEXT: b .LBB2_3
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; P8-NEXT: .LBB2_2: # %if.false
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; P8-NEXT: bl bar
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; P8-NEXT: nop
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; P8-NEXT: stw 3, 108(1) # 4-byte Folded Spill
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; P8-NEXT: .LBB2_3: # %final
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; P8-NEXT: lwz 3, 108(1) # 4-byte Folded Reload
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; P8-NEXT: clrldi 3, 3, 32
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; P8-NEXT: addi 1, 1, 112
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; P8-NEXT: ld 0, 16(1)
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; P8-NEXT: mtlr 0
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; P8-NEXT: blr
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;
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; P9-LABEL: test_choice3:
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; P9: # %bb.0: # %entry
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; P9-NEXT: mflr 0
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; P9-NEXT: stdu 1, -112(1)
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; P9-NEXT: std 0, 128(1)
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; P9-NEXT: xscmpuqp 0, 2, 3
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; P9-NEXT: bge 0, .LBB2_2
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; P9-NEXT: b .LBB2_1
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; P9-NEXT: .LBB2_1: # %if.true
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; P9-NEXT: bl foo
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; P9-NEXT: nop
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; P9-NEXT: stw 3, 108(1) # 4-byte Folded Spill
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; P9-NEXT: b .LBB2_3
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; P9-NEXT: .LBB2_2: # %if.false
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; P9-NEXT: bl bar
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; P9-NEXT: nop
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; P9-NEXT: stw 3, 108(1) # 4-byte Folded Spill
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; P9-NEXT: .LBB2_3: # %final
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; P9-NEXT: lwz 3, 108(1) # 4-byte Folded Reload
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; P9-NEXT: clrldi 3, 3, 32
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; P9-NEXT: addi 1, 1, 112
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; P9-NEXT: ld 0, 16(1)
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; P9-NEXT: mtlr 0
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; P9-NEXT: blr
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entry:
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%cmp = fcmp olt fp128 %a, %b
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br i1 %cmp, label %if.true, label %if.false
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if.true:
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%res1 = call i32 @foo()
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br label %final
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if.false:
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%res2 = call i32 @bar()
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br label %final
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final:
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%result = phi i32 [%res1, %if.true], [%res2, %if.false]
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ret i32 %result
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}
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define i32 @test_choice4(fp128 %a, fp128 %b) #0 {
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; P8-LABEL: test_choice4:
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; P8: # %bb.0: # %entry
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; P8-NEXT: mflr 0
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; P8-NEXT: stdu 1, -112(1)
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; P8-NEXT: std 0, 128(1)
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; P8-NEXT: bl __eqkf2
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; P8-NEXT: nop
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; P8-NEXT: # kill: def $r3 killed $r3 killed $x3
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; P8-NEXT: cmplwi 3, 0
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; P8-NEXT: beq 0, .LBB3_2
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; P8-NEXT: b .LBB3_1
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; P8-NEXT: .LBB3_1: # %if.true
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; P8-NEXT: bl foo
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; P8-NEXT: nop
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; P8-NEXT: stw 3, 108(1) # 4-byte Folded Spill
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; P8-NEXT: b .LBB3_3
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; P8-NEXT: .LBB3_2: # %if.false
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; P8-NEXT: bl bar
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; P8-NEXT: nop
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; P8-NEXT: stw 3, 108(1) # 4-byte Folded Spill
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; P8-NEXT: .LBB3_3: # %final
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; P8-NEXT: lwz 3, 108(1) # 4-byte Folded Reload
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; P8-NEXT: clrldi 3, 3, 32
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; P8-NEXT: addi 1, 1, 112
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; P8-NEXT: ld 0, 16(1)
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; P8-NEXT: mtlr 0
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; P8-NEXT: blr
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;
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; P9-LABEL: test_choice4:
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; P9: # %bb.0: # %entry
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; P9-NEXT: mflr 0
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; P9-NEXT: stdu 1, -112(1)
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; P9-NEXT: std 0, 128(1)
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; P9-NEXT: xscmpuqp 0, 2, 3
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; P9-NEXT: beq 0, .LBB3_2
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; P9-NEXT: b .LBB3_1
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; P9-NEXT: .LBB3_1: # %if.true
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; P9-NEXT: bl foo
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; P9-NEXT: nop
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; P9-NEXT: stw 3, 108(1) # 4-byte Folded Spill
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; P9-NEXT: b .LBB3_3
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; P9-NEXT: .LBB3_2: # %if.false
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; P9-NEXT: bl bar
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; P9-NEXT: nop
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; P9-NEXT: stw 3, 108(1) # 4-byte Folded Spill
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; P9-NEXT: .LBB3_3: # %final
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; P9-NEXT: lwz 3, 108(1) # 4-byte Folded Reload
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; P9-NEXT: clrldi 3, 3, 32
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; P9-NEXT: addi 1, 1, 112
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; P9-NEXT: ld 0, 16(1)
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; P9-NEXT: mtlr 0
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; P9-NEXT: blr
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entry:
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%cmp = fcmp une fp128 %a, %b
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br i1 %cmp, label %if.true, label %if.false
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if.true:
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%res1 = call i32 @foo()
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br label %final
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if.false:
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%res2 = call i32 @bar()
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br label %final
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final:
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%result = phi i32 [%res1, %if.true], [%res2, %if.false]
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ret i32 %result
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}
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attributes #0 = { nounwind }
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declare i32 @foo()
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declare i32 @bar()
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