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llvm-mirror/test/CodeGen/ARM/fpcmp-opt.ll
Saleem Abdulrasool 53e8c5a4af ARM: fixup more tests to specify the target more explicitly
This changes the tests that were targeting ARM EABI to explicitly specify the
environment rather than relying on the default.  This breaks with the new
Windows on ARM support when running the tests on Windows where the default
environment is no longer EABI.

Take the opportunity to avoid a pointless redirect (helps when trying to debug
with providing a command line invocation which can be copy and pasted) and
removing a few greps in favour of FileCheck.

llvm-svn: 205541
2014-04-03 16:01:44 +00:00

82 lines
1.7 KiB
LLVM

; RUN: llc -mtriple=arm-eabi -mcpu=cortex-a8 -mattr=+vfp2 -enable-unsafe-fp-math %s -o - \
; RUN: | FileCheck %s
; rdar://7461510
; rdar://10964603
; Disable this optimization unless we know one of them is zero.
define arm_apcscc i32 @t1(float* %a, float* %b) nounwind {
entry:
; CHECK-LABEL: t1:
; CHECK: vldr [[S0:s[0-9]+]],
; CHECK: vldr [[S1:s[0-9]+]],
; CHECK: vcmpe.f32 [[S1]], [[S0]]
; CHECK: vmrs APSR_nzcv, fpscr
; CHECK: beq
%0 = load float* %a
%1 = load float* %b
%2 = fcmp une float %0, %1
br i1 %2, label %bb1, label %bb2
bb1:
%3 = call i32 @bar()
ret i32 %3
bb2:
%4 = call i32 @foo()
ret i32 %4
}
; If one side is zero, the other size sign bit is masked off to allow
; +0.0 == -0.0
define arm_apcscc i32 @t2(double* %a, double* %b) nounwind {
entry:
; CHECK-LABEL: t2:
; CHECK-NOT: vldr
; CHECK: ldrd [[REG1:(r[0-9]+)]], [[REG2:(r[0-9]+)]], [r0]
; CHECK-NOT: b LBB
; CHECK: bfc [[REG2]], #31, #1
; CHECK: cmp [[REG1]], #0
; CHECK: cmpeq [[REG2]], #0
; CHECK-NOT: vcmpe.f32
; CHECK-NOT: vmrs
; CHECK: bne
%0 = load double* %a
%1 = fcmp oeq double %0, 0.000000e+00
br i1 %1, label %bb1, label %bb2
bb1:
%2 = call i32 @bar()
ret i32 %2
bb2:
%3 = call i32 @foo()
ret i32 %3
}
define arm_apcscc i32 @t3(float* %a, float* %b) nounwind {
entry:
; CHECK-LABEL: t3:
; CHECK-NOT: vldr
; CHECK: ldr [[REG3:(r[0-9]+)]], [r0]
; CHECK: mvn [[REG4:(r[0-9]+)]], #-2147483648
; CHECK: tst [[REG3]], [[REG4]]
; CHECK-NOT: vcmpe.f32
; CHECK-NOT: vmrs
; CHECK: bne
%0 = load float* %a
%1 = fcmp oeq float %0, 0.000000e+00
br i1 %1, label %bb1, label %bb2
bb1:
%2 = call i32 @bar()
ret i32 %2
bb2:
%3 = call i32 @foo()
ret i32 %3
}
declare i32 @bar()
declare i32 @foo()