libcalls.ll
3.32 KB
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; 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)
declare double @llvm.pow.f64(double, double)
declare double @llvm.log.f64(double)
declare double @llvm.exp.f64(double)
declare i32 @llvm.lround(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 i32 @f64libcalls(double %x, double %y) {
; CHECK: f64.call $push{{[0-9]}}=, cos
%a = call double @llvm.cos.f64(double %x)
; CHECK: f64.call $push{{[0-9]}}=, log10
%b = call double @llvm.log10.f64(double %a)
; CHECK: f64.call $push{{[0-9]}}=, pow
%c = call double @llvm.pow.f64(double %b, double %y)
; CHECK: f64.call $push{{[0-9]}}=, log
%d = call double @llvm.log.f64(double %c)
; CHECK: f64.call $push{{[0-9]}}=, exp
%e = call double @llvm.exp.f64(double %d)
; CHECK: i32.call $push{{[0-9]}}=, lround
%f = call i32 @llvm.lround(double %e)
ret i32 %f
}
; 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
}