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llvm-mirror/test/CodeGen/WebAssembly/libcalls.ll
Wouter van Oortmerssen c7f8ab2cc1 [WebAssembly] Added default stack-only instruction mode for MC.
Summary:
Made it convert from register to stack based instructions, and removed the registers.
Fixes to related code that was expecting register based instructions.
Added the correct testing flag to all tests, depending on what the
format they were expecting so far.
Translated one test to stack format as example: reg-stackify-stack.ll

tested:
llvm-lit -v `find test -name WebAssembly`
unittests/MC/*

Reviewers: dschuff, sunfish

Subscribers: sbc100, jgravelle-google, eraman, aheejin, llvm-commits, jfb

Differential Revision: https://reviews.llvm.org/D51241

llvm-svn: 340750
2018-08-27 15:45:51 +00:00

108 lines
2.9 KiB
LLVM

; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-keep-registers | FileCheck %s
; Test a subset of compiler-rt/libm libcalls expected to be emitted by the wasm backend
target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
target triple = "wasm32-unknown-unknown"
declare fp128 @llvm.sqrt.f128(fp128)
declare fp128 @llvm.floor.f128(fp128)
declare fp128 @llvm.trunc.f128(fp128)
declare fp128 @llvm.nearbyint.f128(fp128)
declare fp128 @llvm.pow.f128(fp128, fp128)
declare double @llvm.cos.f64(double)
declare double @llvm.log10.f64(double)
; CHECK-LABEL: fp128libcalls:
define fp128 @fp128libcalls(fp128 %x, fp128 %y) {
; compiler-rt call
; CHECK: call __addtf3
%a = fadd fp128 %x, %y
; CHECK: call __multf3
%b = fmul fp128 %a, %y
; CHECK: call __divtf3
%c = fdiv fp128 %b, %y
; libm calls
; CHECK: call sqrtl
%d = call fp128 @llvm.sqrt.f128(fp128 %c)
; CHECK: call floorl
%e = call fp128 @llvm.floor.f128(fp128 %d)
; CHECK: call powl
%f = call fp128 @llvm.pow.f128(fp128 %e, fp128 %y)
; CHECK: call truncl
%g = call fp128 @llvm.trunc.f128(fp128 %f)
; CHECK: call nearbyintl
%h = call fp128 @llvm.nearbyint.f128(fp128 %g)
ret fp128 %h
}
; CHECK-LABEL: i128libcalls:
define i128 @i128libcalls(i128 %x, i128 %y) {
; Basic ops should be expanded
; CHECK_NOT: call
%a = add i128 %x, %y
; CHECK: call __multi3
%b = mul i128 %a, %y
; CHECK: call __umodti3
%c = urem i128 %b, %y
ret i128 %c
}
; CHECK-LABEL: f64libcalls:
define double @f64libcalls(double %x, double %y) {
; CHECK: f64.call $push{{[0-9]}}=, cos@FUNCTION
%a = call double @llvm.cos.f64(double %x)
; CHECK: f64.call $push{{[0-9]}}=, log10@FUNCTION
%b = call double @llvm.log10.f64(double %a)
ret double %b
}
; fcmp ord and unord (RTLIB::O_F32 / RTLIB::UO_F32 etc) are a special case (see
; comment in WebAssemblyRunimeLibcallSignatures.cpp) so check them separately.
; no libcalls are needed for f32 and f64
; CHECK-LABEL: unordd:
define i1 @unordd(double %x, double %y) {
; CHECK-NOT: call
; CHECK: f64.ne
%a = fcmp uno double %x, %y
; CHECK-NOT: call
; CHECK: f64.eq
%b = fcmp ord double %x, %y
; CHECK: i32.xor
%c = xor i1 %a, %b
ret i1 %c
}
; CHECK-LABEL: unordf:
define i1 @unordf(float %x, float %y) {
; CHECK-NOT: call
; CHECK: f32.ne
%a = fcmp uno float %x, %y
; CHECK-NOT: call
; CHECK: f32.eq
%b = fcmp ord float %x, %y
; CHECK: i32.xor
%c = xor i1 %a, %b
ret i1 %c
}
; CHECK-LABEL: unordt:
define i1 @unordt(fp128 %x, fp128 %y) {
; CHECK: i32.call $push[[CALL:[0-9]]]=, __unordtf2
; CHECK-NEXT: i32.const $push[[ZERO:[0-9]+]]=, 0
; CHECK-NEXT: i32.ne $push{{[0-9]}}=, $pop[[CALL]], $pop[[ZERO]]
%a = fcmp uno fp128 %x, %y
ret i1 %a
}
; CHECK-LABEL: ordt:
define i1 @ordt(fp128 %x, fp128 %y) {
; CHECK: i32.call $push[[CALL:[0-9]]]=, __unordtf2
; CHECK-NEXT: i32.eqz $push{{[0-9]}}=, $pop[[CALL]]
%a = fcmp ord fp128 %x, %y
ret i1 %a
}