66251f7e1d
Record internal state based on register units. This is often more efficient as there are typically fewer register units to update compared to iterating over all the aliases of a register. Original patch by Matthias Braun, but I've been rebasing and fixing it for almost 2 years and fixed a few bugs causing intermediate failures to make this patch independent of the changes in https://reviews.llvm.org/D52010.
149 lines
5.0 KiB
LLVM
149 lines
5.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -frame-pointer=all -O0 -mcpu=i486 | FileCheck %s
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;; magic constants are 3.999f and half of 3.999
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; ModuleID = '1489.c'
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target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64"
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target triple = "i686-apple-darwin8"
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@.str = internal constant [13 x i8] c"%d %d %d %d\0A\00" ; <[13 x i8]*> [#uses=1]
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define i32 @quux() nounwind {
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; CHECK-LABEL: quux:
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; CHECK: ## %bb.0: ## %entry
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; CHECK-NEXT: pushl %ebp
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; CHECK-NEXT: movl %esp, %ebp
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; CHECK-NEXT: subl $8, %esp
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; CHECK-NEXT: movl %esp, %eax
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; CHECK-NEXT: movl $1082126238, (%eax) ## imm = 0x407FEF9E
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; CHECK-NEXT: calll _lrintf
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; CHECK-NEXT: cmpl $1, %eax
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; CHECK-NEXT: setl %al
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; CHECK-NEXT: andb $1, %al
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; CHECK-NEXT: movzbl %al, %eax
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; CHECK-NEXT: addl $8, %esp
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; CHECK-NEXT: popl %ebp
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; CHECK-NEXT: retl
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entry:
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%tmp1 = tail call i32 @lrintf( float 0x400FFDF3C0000000 ) ; <i32> [#uses=1]
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%tmp2 = icmp slt i32 %tmp1, 1 ; <i1> [#uses=1]
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%tmp23 = zext i1 %tmp2 to i32 ; <i32> [#uses=1]
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ret i32 %tmp23
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}
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declare i32 @lrintf(float)
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define i32 @foo() nounwind {
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; CHECK-LABEL: foo:
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; CHECK: ## %bb.0: ## %entry
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; CHECK-NEXT: pushl %ebp
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; CHECK-NEXT: movl %esp, %ebp
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; CHECK-NEXT: subl $8, %esp
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; CHECK-NEXT: movl %esp, %eax
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; CHECK-NEXT: movl $1074789875, 4(%eax) ## imm = 0x400FFDF3
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; CHECK-NEXT: movl $-1236950581, (%eax) ## imm = 0xB645A1CB
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; CHECK-NEXT: calll _lrint
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; CHECK-NEXT: cmpl $1, %eax
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; CHECK-NEXT: setl %al
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; CHECK-NEXT: andb $1, %al
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; CHECK-NEXT: movzbl %al, %eax
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; CHECK-NEXT: addl $8, %esp
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; CHECK-NEXT: popl %ebp
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; CHECK-NEXT: retl
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entry:
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%tmp1 = tail call i32 @lrint( double 3.999000e+00 ) ; <i32> [#uses=1]
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%tmp2 = icmp slt i32 %tmp1, 1 ; <i1> [#uses=1]
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%tmp23 = zext i1 %tmp2 to i32 ; <i32> [#uses=1]
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ret i32 %tmp23
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}
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declare i32 @lrint(double)
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define i32 @bar() nounwind {
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; CHECK-LABEL: bar:
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; CHECK: ## %bb.0: ## %entry
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; CHECK-NEXT: pushl %ebp
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; CHECK-NEXT: movl %esp, %ebp
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; CHECK-NEXT: subl $8, %esp
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; CHECK-NEXT: movl %esp, %eax
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; CHECK-NEXT: movl $1082126238, (%eax) ## imm = 0x407FEF9E
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; CHECK-NEXT: calll _lrintf
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; CHECK-NEXT: cmpl $1, %eax
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; CHECK-NEXT: setl %al
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; CHECK-NEXT: andb $1, %al
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; CHECK-NEXT: movzbl %al, %eax
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; CHECK-NEXT: addl $8, %esp
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; CHECK-NEXT: popl %ebp
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; CHECK-NEXT: retl
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entry:
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%tmp1 = tail call i32 @lrintf( float 0x400FFDF3C0000000 ) ; <i32> [#uses=1]
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%tmp2 = icmp slt i32 %tmp1, 1 ; <i1> [#uses=1]
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%tmp23 = zext i1 %tmp2 to i32 ; <i32> [#uses=1]
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ret i32 %tmp23
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}
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define i32 @baz() nounwind {
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; CHECK-LABEL: baz:
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; CHECK: ## %bb.0: ## %entry
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; CHECK-NEXT: pushl %ebp
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; CHECK-NEXT: movl %esp, %ebp
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; CHECK-NEXT: subl $8, %esp
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; CHECK-NEXT: movl %esp, %eax
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; CHECK-NEXT: movl $1082126238, (%eax) ## imm = 0x407FEF9E
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; CHECK-NEXT: calll _lrintf
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; CHECK-NEXT: cmpl $1, %eax
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; CHECK-NEXT: setl %al
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; CHECK-NEXT: andb $1, %al
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; CHECK-NEXT: movzbl %al, %eax
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; CHECK-NEXT: addl $8, %esp
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; CHECK-NEXT: popl %ebp
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; CHECK-NEXT: retl
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entry:
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%tmp1 = tail call i32 @lrintf( float 0x400FFDF3C0000000 ) ; <i32> [#uses=1]
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%tmp2 = icmp slt i32 %tmp1, 1 ; <i1> [#uses=1]
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%tmp23 = zext i1 %tmp2 to i32 ; <i32> [#uses=1]
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ret i32 %tmp23
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}
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define i32 @main() nounwind {
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; CHECK-LABEL: main:
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; CHECK: ## %bb.0: ## %entry
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; CHECK-NEXT: pushl %ebp
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; CHECK-NEXT: movl %esp, %ebp
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; CHECK-NEXT: pushl %edi
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; CHECK-NEXT: pushl %esi
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; CHECK-NEXT: subl $48, %esp
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; CHECK-NEXT: calll _baz
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; CHECK-NEXT: movl %eax, {{[-0-9]+}}(%e{{[sb]}}p) ## 4-byte Spill
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; CHECK-NEXT: calll _bar
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; CHECK-NEXT: movl %eax, {{[-0-9]+}}(%e{{[sb]}}p) ## 4-byte Spill
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; CHECK-NEXT: calll _foo
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; CHECK-NEXT: movl %eax, {{[-0-9]+}}(%e{{[sb]}}p) ## 4-byte Spill
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; CHECK-NEXT: calll _quux
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; CHECK-NEXT: movl %esp, %ecx
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; CHECK-NEXT: movl {{[-0-9]+}}(%e{{[sb]}}p), %edx ## 4-byte Reload
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; CHECK-NEXT: movl %edx, 16(%ecx)
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; CHECK-NEXT: movl {{[-0-9]+}}(%e{{[sb]}}p), %esi ## 4-byte Reload
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; CHECK-NEXT: movl %esi, 12(%ecx)
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; CHECK-NEXT: movl {{[-0-9]+}}(%e{{[sb]}}p), %edi ## 4-byte Reload
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; CHECK-NEXT: movl %edi, 8(%ecx)
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; CHECK-NEXT: movl %eax, 4(%ecx)
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; CHECK-NEXT: movl $_.str, (%ecx)
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; CHECK-NEXT: calll _printf
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; CHECK-NEXT: ## implicit-def: $ecx
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; CHECK-NEXT: movl %eax, {{[-0-9]+}}(%e{{[sb]}}p) ## 4-byte Spill
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; CHECK-NEXT: movl %ecx, %eax
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; CHECK-NEXT: addl $48, %esp
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; CHECK-NEXT: popl %esi
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; CHECK-NEXT: popl %edi
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; CHECK-NEXT: popl %ebp
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; CHECK-NEXT: retl
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entry:
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%tmp = tail call i32 @baz( ) ; <i32> [#uses=1]
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%tmp1 = tail call i32 @bar( ) ; <i32> [#uses=1]
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%tmp2 = tail call i32 @foo( ) ; <i32> [#uses=1]
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%tmp3 = tail call i32 @quux( ) ; <i32> [#uses=1]
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%tmp5 = tail call i32 (i8*, ...) @printf( i8* getelementptr ([13 x i8], [13 x i8]* @.str, i32 0, i32 0), i32 %tmp3, i32 %tmp2, i32 %tmp1, i32 %tmp ) ; <i32> [#uses=0]
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ret i32 undef
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}
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declare i32 @printf(i8*, ...)
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