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llvm-project/llvm/test/CodeGen/XCore/ashr.ll

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convert the last 3 targets to use EmitFunctionBody() now that it has before/end body hooks. lib/Target/Alpha/AsmPrinter/AlphaAsmPrinter.cpp | 49 ++----------- lib/Target/Mips/AsmPrinter/MipsAsmPrinter.cpp | 87 ++++++------------------ lib/Target/XCore/AsmPrinter/XCoreAsmPrinter.cpp | 56 +++------------ test/CodeGen/XCore/ashr.ll | 2 4 files changed, 48 insertions(+), 146 deletions(-) llvm-svn: 94741
2010-01-28 14:22:43 +08:00
; RUN: llc < %s -march=xcore -asm-verbose=0 | FileCheck %s
Add some peepholes for signed comparisons using ashr X, X, 32. llvm-svn: 83549
2009-10-08 23:38:17 +08:00
define i32 @ashr(i32 %a, i32 %b) {
%1 = ashr i32 %a, %b
ret i32 %1
}
; CHECK: ashr:
; CHECK-NEXT: ashr r0, r0, r1
define i32 @ashri1(i32 %a) {
%1 = ashr i32 %a, 24
ret i32 %1
}
; CHECK: ashri1:
; CHECK-NEXT: ashr r0, r0, 24
define i32 @ashri2(i32 %a) {
%1 = ashr i32 %a, 31
ret i32 %1
}
; CHECK: ashri2:
; CHECK-NEXT: ashr r0, r0, 32
define i32 @f1(i32 %a) {
%1 = icmp slt i32 %a, 0
br i1 %1, label %less, label %not_less
less:
ret i32 10
not_less:
ret i32 17
}
; CHECK: f1:
; CHECK-NEXT: ashr r0, r0, 32
; CHECK-NEXT: bf r0
define i32 @f2(i32 %a) {
%1 = icmp sge i32 %a, 0
br i1 %1, label %greater, label %not_greater
greater:
ret i32 10
not_greater:
ret i32 17
}
; CHECK: f2:
; CHECK-NEXT: ashr r0, r0, 32
; CHECK-NEXT: bt r0
define i32 @f3(i32 %a) {
%1 = icmp slt i32 %a, 0
%2 = select i1 %1, i32 10, i32 17
ret i32 %2
}
; CHECK: f3:
Enable machine sinking critical edge splitting. e.g. define double @foo(double %x, double %y, i1 %c) nounwind { %a = fdiv double %x, 3.2 %z = select i1 %c, double %a, double %y ret double %z } Was: _foo: divsd LCPI0_0(%rip), %xmm0 testb $1, %dil jne LBB0_2 movaps %xmm1, %xmm0 LBB0_2: ret Now: _foo: testb $1, %dil je LBB0_2 divsd LCPI0_0(%rip), %xmm0 ret LBB0_2: movaps %xmm1, %xmm0 ret This avoids the divsd when early exit is taken. rdar://8454886 llvm-svn: 114372
2010-09-21 06:52:00 +08:00
; CHECK-NEXT: ashr r0, r0, 32
; CHECK-NEXT: bf r0
Add some peepholes for signed comparisons using ashr X, X, 32. llvm-svn: 83549
2009-10-08 23:38:17 +08:00
; CHECK-NEXT: ldc r0, 10
; CHECK: ldc r0, 17
define i32 @f4(i32 %a) {
%1 = icmp sge i32 %a, 0
%2 = select i1 %1, i32 10, i32 17
ret i32 %2
}
; CHECK: f4:
Enable machine sinking critical edge splitting. e.g. define double @foo(double %x, double %y, i1 %c) nounwind { %a = fdiv double %x, 3.2 %z = select i1 %c, double %a, double %y ret double %z } Was: _foo: divsd LCPI0_0(%rip), %xmm0 testb $1, %dil jne LBB0_2 movaps %xmm1, %xmm0 LBB0_2: ret Now: _foo: testb $1, %dil je LBB0_2 divsd LCPI0_0(%rip), %xmm0 ret LBB0_2: movaps %xmm1, %xmm0 ret This avoids the divsd when early exit is taken. rdar://8454886 llvm-svn: 114372
2010-09-21 06:52:00 +08:00
; CHECK-NEXT: ashr r0, r0, 32
; CHECK-NEXT: bf r0
Add some peepholes for signed comparisons using ashr X, X, 32. llvm-svn: 83549
2009-10-08 23:38:17 +08:00
; CHECK-NEXT: ldc r0, 17
; CHECK: ldc r0, 10
define i32 @f5(i32 %a) {
%1 = icmp sge i32 %a, 0
%2 = zext i1 %1 to i32
ret i32 %2
}
; CHECK: f5:
; CHECK-NEXT: ashr r0, r0, 32
; CHECK-NEXT: eq r0, r0, 0