2208c97c1b
Similar to 806761a7629df268c8aed49657aeccffa6bca449 -mtriple= specifies the full target triple while -march= merely sets the architecture part of the default target triple, leaving a target triple which may not make sense. Therefore, -march= is error-prone and not recommended for tests without a target triple. The issue has been benign as we recognize $unknown-apple-darwin as ELF instead of rejecting it outrightly.
58 lines
1.7 KiB
LLVM
58 lines
1.7 KiB
LLVM
; RUN: llc -mtriple=hexagon -hexagon-eif=0 -ifcvt-limit=0 -hexagon-initial-cfg-cleanup=0 < %s | FileCheck %s
|
|
; Check that we constant extended instructions only when necessary.
|
|
|
|
define i32 @cext_test1(ptr %a) nounwind {
|
|
; CHECK: r{{[0-9]+}} = memw(r{{[0-9]+}}+##8000)
|
|
; CHECK: r{{[0-9]+}} = add(r{{[0-9]+}},##300000)
|
|
; CHECK-NOT: r{{[0-9]+}} = memw(r{{[0-9]+}}+##4092)
|
|
; CHECK-NOT: r{{[0-9]+}} = add(r{{[0-9]+}},##300)
|
|
entry:
|
|
%0 = load i32, ptr %a, align 4
|
|
%tobool = icmp ne i32 %0, 0
|
|
br i1 %tobool, label %if.then, label %if.end
|
|
|
|
if.then:
|
|
%arrayidx1 = getelementptr inbounds i32, ptr %a, i32 2000
|
|
%1 = load i32, ptr %arrayidx1, align 4
|
|
%add = add nsw i32 %1, 300000
|
|
br label %return
|
|
|
|
if.end:
|
|
%arrayidx2 = getelementptr inbounds i32, ptr %a, i32 1023
|
|
%2 = load i32, ptr %arrayidx2, align 4
|
|
%add3 = add nsw i32 %2, 300
|
|
br label %return
|
|
|
|
return:
|
|
%retval.0 = phi i32 [ %add, %if.then ], [ %add3, %if.end ]
|
|
ret i32 %retval.0
|
|
}
|
|
|
|
define i32 @cext_test2(ptr %a) nounwind {
|
|
; CHECK-NOT: r{{[0-9]+}} = memub(r{{[0-9]+}}+##1023)
|
|
; CHECK: r{{[0-9]+}} = add(r{{[0-9]+}},##300000)
|
|
; CHECK: r{{[0-9]+}} = memub(r{{[0-9]+}}+##1024)
|
|
; CHECK-NOT: r{{[0-9]+}} = add(r{{[0-9]+}},##6000)
|
|
entry:
|
|
%tobool = icmp ne ptr %a, null
|
|
br i1 %tobool, label %if.then, label %if.end
|
|
|
|
if.then:
|
|
%arrayidx = getelementptr inbounds i8, ptr %a, i32 1023
|
|
%0 = load i8, ptr %arrayidx, align 1
|
|
%conv = zext i8 %0 to i32
|
|
%add = add nsw i32 %conv, 300000
|
|
br label %return
|
|
|
|
if.end:
|
|
%arrayidx1 = getelementptr inbounds i8, ptr %a, i32 1024
|
|
%1 = load i8, ptr %arrayidx1, align 1
|
|
%conv2 = zext i8 %1 to i32
|
|
%add3 = add nsw i32 %conv2, 6000
|
|
br label %return
|
|
|
|
return:
|
|
%retval.0 = phi i32 [ %add, %if.then ], [ %add3, %if.end ]
|
|
ret i32 %retval.0
|
|
}
|